That is a chemical change or reaction.
Answer:
A mnemonic code
Explanation:
A mnemonic code is a memory aid so as to memorize or remember something.
It is code that helps to recall the information it represents easily.
For example :
ATM for Any time cash machine
or VIBGYOR to remember the colors in a rainbow.
To specify instructions these are widely used in computer programming and communications system operations.
No there are more species in phylum arthropoda than in phylum nematoda
All organisms, because everything adapts and evolves
